We suggest upgrading to the latest jailbreakable firmware using iTunes. Here are download links for iOS 8.3. Please note that you must update using iTunes rather than Software Update. If you used Software Update you should do a backup then restore to iOS 8.3 using iTunes.

Step 1. Make sure that you have installed iOS 8.1.3 – 8.3, it’s recommended to have iOS 8.3.

Go to Settings>General>About>Version

Step 2. Go to Settings>Touch ID & Passcode (Passcode). Turn Passcode Off if it is enabled.